Seismic Waveform Inversion by Stochastic Optimization

Figure 7

Inversion result for the SAA approach with various batch sizes and noise levels. The rows represent different batch sizes 𝐾=1,5,10,20, while the columns represent different noise levels: no noise, SNR = 20 dB, and SNR = 10 dB. The reconstruction with 𝐾=20 for noiseless data (j) is qualitatively comparable to the full reconstruction. The quality deteriorates quickly for small batch sizes and noisy data.

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